Cheapest priced copy (Innistrad: Crimson Vow): $1.49 at Card Kingdom, near mint, their price list as of .
Wash Away 
Instant · Uncommon · Innistrad: Double Feature · #354
Cleave {1}{U}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Counter target spell [that wasn't cast from its owner's hand].
Legal inCommanderPioneerModernLegacyVintage
Banned inBrawl
Not legal inStandardPauper
3 printings · $1.49 to $37.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 354 | Uncommon | $2.79 | $37.99 |
| The List | VOW-87 | Uncommon | $1.79 | — |
| Innistrad: Crimson Vow | 87 | Uncommon | $1.49 | $3.99 |
5 rulings from Wizards of the Coast
- 19 November 2021You can't cast a spell for both its cleave cost and another alternative cost. For example, if an effect gives an Alchemist's Retrieval in your graveyard a flashback cost of {U}, you can't cast it from your graveyard for its cleave cost.
- 19 November 2021If you cast a spell for its cleave cost, that spell doesn't have any of the text in square brackets while it's on the stack.
- 19 November 2021A cleave cost is an alternative cost that's paid instead of the spell's mana cost. Casting a spell for its cleave cost doesn't change the spell's mana value.
- 19 November 2021Copies of spells are never cast from a player's hand, so Wash Away can counter copies of spells even if its cleave cost wasn't paid, regardless of whether the original spell being copied was cast from a player's hand.
- 19 November 2021If an effect allows you to “cast a spell without paying its mana cost,” you can't cast that spell for its cleave cost.